Total synthesis of enantiomers of (3Z,6Z)-cis-9,10-epoxy 1,3,6-henicosatriene — the pheromonal component of Diacrisia obliqua
摘要:
Synthesis of enantiomers of (3Z,6Z)-cis-9,10-epoxy 1,3,6-henicosatriene, the pheromonal component of Diacrisia obliqua was achieved through alkylative epoxide rearrangement and stereoselective Wittig olefination reactions as the key steps. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
an enantioselective lipase-catalyzed acylation of a secondary alcohol, (ii) an efficientdiastereoselective addition of an alkyl-lithium reagent to a glyceraldehyde derivative, (iii) conversion of an epoxide to a one-carbon homologated allylicalcohol via a sulphorane addition, and (iv) a cross metathesis between two chiralallylicalcohols and subsequent functionalization to obtain the ethyl ester of
Facile one-pot transformation of 2,3-epoxy alcohols into allylic alcohols: first total synthesis of (−)-4-O-(6′-hydroxy-7′(9′)-dehydro-6′,7′-dihydrogeranyl)coniferol
作者:Zuosheng Liu、Jiong Lan、Yulin Li
DOI:10.1016/s0957-4166(98)00385-1
日期:1998.11
An efficient and practical synthesis of optically active allylic alcohols from 2,3-epoxy alcohols by the in situ formation of the epoxy iodides and their subsequent reduction with phosphine hydroxyiodide has been established. Using this reaction as the key step, we synthesized (-)-4-O-(6'-hydroxy-7'(9')-dehydro-6',7'-dihydrogeranyl)coniferol. (C) 1998 Elsevier Science Ltd. All rights reserved.